Cobra 29 LX AM/FM CB Radio + Stryker SR-A10 Antenna + DRX-3402 Heavy-Duty Mirror Mount + DRX-1518 18-Foot Premium M213 Coax Combo

A complete truck-install package for drivers who want a hardline permanent CB antenna instead of a magnet mount. This combo pairs the Cobra 29 LX AM/FM CB radio with the Stryker SR-A10 fiberglass CB/10-meter antenna, the DRX-3402 Magnum heavy-duty mirror mount, and 18 feet of DRX-1518 premium M213 coax. Designed to bolt to a semi mirror or a pickup mirror bracket and stay there.

What's in the combo

• Cobra 29 LX AM/FM CB radio — 40-channel dual-mode AM/FM, 4-color LCD, 10-channel NOAA weather receiver with alert tone, instant channel 9/19, Radio Check self-test, built-in SWR meter, PA capability
• Stryker SR-A10 fiberglass CB/10-meter antenna — 4-foot fiberglass shaft, tunable tip, 1,500 W handling, 3/8″-24 threaded base, 2-year factory guarantee
• DRX-3402 Magnum mirror mount — extra-large 2.50″-wide mount, .250″-thick aircraft-quality extruded aluminum, Square-Lock stainless carriage bolts, stainless K-Lock nuts with captive lock washers, proprietary DX239 heavy-duty stud, ABS-encased stainless nut for added support
• DRX-1518 18-foot M213 premium coax — 50 Ω, double-shielded (96% tinned-copper braid + 100% aluminum foil), preterminated PL-259 connectors, RG-8X-class Quantum-Flex construction
• Cobra 29 LX accessories: factory dynamic 4-pin microphone, DC power cord, under-dash mounting bracket, mic clip, owner's manual

Why buy the combo

You save roughly 5% versus buying the Cobra 29 LX, the SR-A10, the DRX-3402 mount, and the DRX-1518 coax separately. Every piece is spec'd to match the others — the DRX-3402's DX239 stud fits the SR-A10's 3/8″-24 base, the DRX-1518's PL-259 fits the 29 LX's SO-239 rear jack, and the 50Ω impedance is consistent end-to-end. Don't forget to add the Pro tune and alignment option at checkout so that your radio is professionally bench-tuned for best performance per the manufacturer's service manual.

Who this combo is for

• Over-the-road truck drivers installing a permanent CB on a Class 8 semi mirror bracket
• Pickup and 4x4 owners putting a hardline install on a mirror bracket, roll-cage post, or bed rail bracket
• Off-roaders and trail riders who want a full-size fiberglass antenna that survives brush and low branches better than a 102″ whip
• Fleet installers outfitting multiple vehicles with a repeatable, spec-matched CB kit
• Buyers who want quality parts, not budget parts — the DRX-3402 mount and DRX-1518 coax are the parts that determine whether an install lasts one year or ten

Install notes

• The DRX-3402 mount bolts to any flat surface (semi mirror bracket, pickup mirror bracket, bull bar, roll-cage tab). The mount's Square-Lock hardware makes it a solid install — the bolts can't turn during tightening, so you can torque against the K-Lock nuts and know it will stay put.
• The SR-A10 threads onto the DRX-3402's included DX239 stud (3/8″-24). The tunable tip lets you set SWR precisely at the antenna without needing to trim.
• Run the DRX-1518 coax from the mount to the radio, keeping it away from moving parts and pinch points. Loop excess coax loosely — don't coil it tightly.
• After install, check SWR at the antenna with an in-line meter (or the 29 LX's Radio Check self-test as a starting point). Adjust the SR-A10's tunable tip until SWR is lowest at your primary channel — typically channel 19 or 20 for over-the-road use.
• For maximum-performance install and bench work, add the Pro tune and alignment service at checkout.

Compatibility

• DRX-3402 mount and SR-A10 antenna work with any CB or 10-meter radio using a standard 50Ω SO-239 rear jack
• The 29 LX's SO-239 accepts the DRX-1518's PL-259 directly — no adapter needed
• The SR-A10 is legal for use on both CB (11m) and 10-meter amateur bands — same antenna, same install
• Related install path: pair with the DRX-6560 noise-cancelling microphone for a complete truck audio + antenna upgrade

Cobra 29 LX Truck Install Combo — Frequently Asked Questions

What's in this combo?

Cobra 29 LX AM/FM CB radio (with factory microphone, power cord, mounting bracket, and mic clip), plus the Stryker SR-A10 fiberglass antenna, the DRX-3402 heavy-duty mirror mount, and 18 feet of DRX-1518 premium M213 coax. Everything you need for a hardline permanent CB install on a mirror bracket.

Do I save money buying the combo?

Yes. The combo is priced at approximately 5% below the total of the four components bought separately.

Does everything work together out of the box?

Yes. The DRX-3402 mount's DX239 stud is a standard 3/8″-24 that accepts the SR-A10 antenna directly. The DRX-1518 coax has preterminated PL-259 connectors on both ends — one goes to the mount, the other plugs into the Cobra 29 LX's rear SO-239 jack. No adapters, no soldering.

Where do I install the SR-A10?

On any mirror bracket, mirror mount, or heavy-duty external mounting point that can accept the DRX-3402's four bolts. Common install locations are Class 8 semi mirror brackets, pickup west-coast-style mirror brackets, bull bars, roll-cage tabs, or fabricated bed-rail brackets. Roof mounts are not recommended for a 4-foot fiberglass antenna on most vehicles.

Does the SR-A10 need tuning?

Yes, briefly. The SR-A10 has a tunable tip — a set screw on the top of the antenna lets you extend or retract the tuning stub until SWR is lowest at your primary channel. This is a one-time adjustment done after install using an in-line SWR meter or the 29 LX's Radio Check self-test.

Is the SR-A10 legal for 10-meter (amateur) use as well as CB?

Yes. The SR-A10 is spec'd for both the CB (27 MHz) and 10-meter (28 MHz) bands. It's the same antenna install — you don't need a separate antenna if you also operate a 10-meter radio.

Why 18 feet of coax? Is that enough?

Yes, for typical semi and pickup installs. 18 feet gives you plenty of routing slack from a mirror bracket to a dash-mounted radio while still keeping the loss low. The DRX-1518's M213 Quantum-Flex construction is low-loss enough that 18 feet has negligible impact on transmit or receive.

Can I upgrade the microphone later?

Yes. The Cobra 29 LX's front-panel 4-pin jack accepts any Cobra-pinout replacement mic — including the DRX-6560 noise-cancelling dynamic mic. It's a plug-and-play swap.

Do I need to add the Pro Tune service?

It's optional but strongly recommended for a truck install like this one. The Pro tune and alignment service bench-tunes the radio per the manufacturer's service manual before shipment so you don't have to send it out later.